Sorry. Just something I've noticed. You made the Amplitude of motion for Q13a) root3. In the question, it says that the max displacement is 2root3 from the centre point of motion. Wouldn't that mean 2root3 is the amplitude?Caught that just now actually. Thanks for mentioning it! An amended solution will appear shortly.
Also shouldn't n equal 6 and not 2/3 for the SHM question?Should also be fixed in the latest version
Overalls were
Q11: 16
Q12: 14
Q13: 15
Q14: 16
Q15: 13
Q16: 16
Was there any part you were interested in?
13 and 15 please :) thank you so muchQ13 parts:
What do you reckon the cut off for this year will be for 4u since everyone on Facebook is bluffingI think a lot of people underestimate the paper's difficulty. It leaned on the easier end of things, but I didn't really feel it was a blessing or anything.
Welp. That's 10 marks lost from Q16 and 2 in multis.Q16b felt like a question where you really had to show algebraic skill tbh.
I think a lot of people underestimate the paper's difficulty. It leaned on the easier end of things, but I didn't really feel it was a blessing or anything.
Admittedly Q16a(i) sent my head spinning for a while before I finally understood what was going on.
Could anyone post a pdf of the paper by any chance???Unfortunately, NESA exams are copyrighted, so they cannot be distributed on the forum. :)
Yeah unfortunately my first mistake was straight up integrating by parts instead of integrating a single sin(x) to be dcosx then doing by parts. Second mistake was converting cos(2\theta) to 2sin^2(\theta)-1.Ah that's very unfortunate indeed. The method for \( I_n = \int \sin^n x\,dx \) is actually one of the classic trig function reductions.
Unfortunately, NESA exams are copyrighted, so they cannot be distributed on the forum. :)
An official copy of the paper has been released.HSC Math Extension 2 looks harder than VIC Spec Maths.